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The Addition And Subtraction Calculator will calculate:

- The result of an addition or subtraction expressed in the least number of decimal places.

**Addition And Subtraction Calculator Parameters:** All numbers are computed to a minimum of one decimal place.

Standard calculator result for calculation of (ƒ) = |

Least number of decimals calculation of (ƒ) |

Standard calculator calculation |
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ƒ = ƒ = |

Least number of decimals calculation |

ƒ = ƒ = ƒ = |

Addition And Subtraction Calculator Input Values |

Formula (ƒ) = |

Please note that the formula for each calculation along with detailed calculations is shown further below this page. As you enter the specific factors of each addition and subtraction calculation, the Addition And Subtraction Calculator will automatically calculate the results and update the formula elements with each element of the addition and subtraction calculation. You can then email or print this addition and subtraction calculation as required for later use.

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Addition and subtraction are operations of the same family. When complete any of these operations, the result shown by a standard calculator has as many decimal places as the term containing the most decimal places.

However, in practice, the number of decimal places indicates the precision of a measurement. It is meaningless to express the result in a higher order of precision than the least precise value. Hence, the result of operations containing addition and subtraction must contain as many decimal places as the least precise number, i.e. the result must contain as many decimal places as the number with least decimal places.

For example, if we consider the arithmetic expression 567.43 + 7.2 - 11.972, a normal calculator gives 562.658. However, in our calculator, the result appears only in one decimal place, as this is the least number of decimals our original numbers have. Therefore, the calculator shows 562.7, because 6 becomes 7 as the digit that comes after 6 in the original number is 5 (i.e. more than 4). Hence, the value of the last significant figure of output increases by 1 compared to its original value.

The following Math tutorials are provided within the Approximations section of our Free Math Tutorials. Each Approximations tutorial includes detailed Approximations formula and example of how to calculate and resolve specific Approximations questions and problems. At the end of each Approximations tutorial you will find Approximations revision questions with a hidden answer that reveal when clicked. This allows you to learn about Approximations and test your knowledge of Math by answering the revision questions on Approximations.

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